v4.19.13 snapshot.
diff --git a/include/linux/elf.h b/include/linux/elf.h
new file mode 100644
index 0000000..e3649b3
--- /dev/null
+++ b/include/linux/elf.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_ELF_H
+#define _LINUX_ELF_H
+
+#include <asm/elf.h>
+#include <uapi/linux/elf.h>
+
+#ifndef elf_read_implies_exec
+ /* Executables for which elf_read_implies_exec() returns TRUE will
+ have the READ_IMPLIES_EXEC personality flag set automatically.
+ Override in asm/elf.h as needed. */
+# define elf_read_implies_exec(ex, have_pt_gnu_stack) 0
+#endif
+#ifndef SET_PERSONALITY
+#define SET_PERSONALITY(ex) \
+ set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
+#endif
+
+#ifndef SET_PERSONALITY2
+#define SET_PERSONALITY2(ex, state) \
+ SET_PERSONALITY(ex)
+#endif
+
+#if ELF_CLASS == ELFCLASS32
+
+extern Elf32_Dyn _DYNAMIC [];
+#define elfhdr elf32_hdr
+#define elf_phdr elf32_phdr
+#define elf_shdr elf32_shdr
+#define elf_note elf32_note
+#define elf_addr_t Elf32_Off
+#define Elf_Half Elf32_Half
+#define Elf_Word Elf32_Word
+
+#else
+
+extern Elf64_Dyn _DYNAMIC [];
+#define elfhdr elf64_hdr
+#define elf_phdr elf64_phdr
+#define elf_shdr elf64_shdr
+#define elf_note elf64_note
+#define elf_addr_t Elf64_Off
+#define Elf_Half Elf64_Half
+#define Elf_Word Elf64_Word
+
+#endif
+
+/* Optional callbacks to write extra ELF notes. */
+struct file;
+struct coredump_params;
+
+#ifndef ARCH_HAVE_EXTRA_ELF_NOTES
+static inline int elf_coredump_extra_notes_size(void) { return 0; }
+static inline int elf_coredump_extra_notes_write(struct coredump_params *cprm) { return 0; }
+#else
+extern int elf_coredump_extra_notes_size(void);
+extern int elf_coredump_extra_notes_write(struct coredump_params *cprm);
+#endif
+#endif /* _LINUX_ELF_H */